students take three test tubes A,B,and C having salt solution starch in water and suspension of sand in water.He past small stripes of coloured papers on one side of each test tubes he then observed the colour paper from other side of test tube one by one through the liquid what would be his obervation give reason
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Observation 1 - The salt solution
The colour paper can be clearly seen as the solution will not disperse the light and the image is clear.
Observation 2 - The starch solution
The colour paper viewed will be partially visible as the particles in the colloid disperse light and hence a blurrly image is formed.
Observation 3 - The sand suspension
The colour paper cannot be viewed as the suspension is opaque due to the sand particles.
Explanation:
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